Vacuum cleaner



FIG. 1 is a perspective view of a vacuum cleaner showing our new design;

FIG. 2 is a right side view of the vacuum cleaner of FIG. 1.

FIG. 3 is a left side view of the vacuum cleaner of FIG. 1.

FIG. 4 is a front view of the vacuum cleaner of FIG. 1.

FIG. 5 is a back view of the vacuum cleaner of FIG. 1; and,

FIG. 6 is a top view of the vacuum cleaner of FIG. 1.

The elements shown in broken lines indicate environmental structure that forms no part of the claimed design. 

CLAIM We claim the ornamental design for a vacuum cleaner, as shown. 